To provide an amendment service during the AIP conversion process, requires the replacement of existing 8-part AIP files and pages to maintain a current AIP version. As such, file organisation and maintenance of the paper copy are constant, and often, two or more AIP paper copies are held - containing notes and status of data which is cross referred to a current version.

Incorporation of amendments during the ICM process, involves 'cross mapping' amended data to the new 3-part location, as well as maintaining the current 8-part AIP version.

A typical conversion process, from mapping to AIP re-issue could span a period of several AIRAC and non AIRAC amendments. It is essential to maintain the AIP in both formats until re-issue.

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